Dental lining composition

Abstract

This invention relates to two-pack type dental lining compositions comprising (a) a solution of a polymer having at least 10 mole % of a carboxyl-containing vinyl monomer, and (b) a solution of a zirconium chelate compound represented by the following general formula <IMAGE> (wherein R1 denotes -CH3, -OCH3 or -OCH2CH3, R2 stands for an alkoxy of 2 to 10 carbon atoms, and n is an integer from 2 to 4).

What is claimed is: 
     
       1. Two-pack type dental lining compositions comprising (a) a solution of a polymer having at least 10 mole % of a carboxyl-containing vinyl monomer, and (b) a solution of a zirconium chelate compound represented by the following general formula ##STR8## (wherein R 1  denotes --CH 3 , --OCH 3  or --OCH 2  CH 3 , R 2  stands for an alkoxy of 2 to 10 carbon atoms, and n is an integer from 2 to 4). 
     
     
       2. The dental lining compositions as defined in claim 1, wherein said polymer is such that the quotient of the total number of carbon atoms in the molecule divided by the number of carboxyl groups contained is 4 or larger. 
     
     
       3. The dental lining compositions as defined in claim 2, wherein said polymer is a styrene/maleic acid copolymer. 
     
     
       4. The dental lining compositions as defined in claim 3, wherein said copolymer is a modified copolymer in which 10 to 60 mole % of the maleic acid units has been modified by aminosalicylic acid. 
     
     
       5. The dental lining compositions as defined in claim 1, wherein said zirconium chelate compound is tetrakis(acetylacetonato)zirconium or dibutoxy bis(acetylacetonato)zirconium.